Back to EveryPatent.com
United States Patent | 5,261,884 |
Stern ,   et al. | November 16, 1993 |
A belt driven infusion pump for emptying the contents of a syringe is disclosed. The pump includes a syringe pusher including an antisiphon catch and a pressure detector which is used for detecting occlusions or the end of infusion. A syringe clamp for locking a syringe in place is also provided. The syringe clamp is spring-loaded and lockable. A syringe position detector is provided to ensure the proper placement of the syringe prior to and during pumping. A control knob is provided on the face of the pump for controlling both the locking of the syringe barrel clamp and the coupling of the drive belt with a d.c. motor. The pump includes a housing having an elongated slot through which the syringe pusher is connected to the drive belt. A sealing band is connected to the syringe pusher and is moveable with the syringe pusher for sealing the slot against moisture or other contaminants. A pole clamp assembly is incorporated within the pump housing and includes a clamping arm for securing the pole between the clamping arm and the housing. The clamping arm is movable to a storage position where it is substantially flush with the outer surface of the pump housing.
Inventors: | Stern; Carl M. (Pennington, NJ); Wittes; James M. (Bernardsville, NJ) |
Assignee: | Becton, Dickinson and Company (Franklin Lake, NJ) |
Appl. No.: | 875895 |
Filed: | April 29, 1992 |
Current U.S. Class: | 604/154; 128/DIG.1; 604/67 |
Intern'l Class: | A61M 037/00 |
Field of Search: | 604/65,67,154,155 128/DIG. 1,DIG. 12,DIG. 13 |
4191187 | Mar., 1980 | Wright | 128/DIG. |
4424720 | Jan., 1984 | Bucchianeri | 604/155. |
4685039 | Aug., 1987 | Cable et al. | 604/154. |
4695271 | Sep., 1987 | Goethel | 604/154. |
4804368 | Feb., 1989 | Skakoon et al. | 128/DIG. |
4846797 | Jul., 1989 | Howson et al. | 604/154. |
4988337 | Jan., 1991 | Ito | 604/154. |
5034004 | Jul., 1991 | Crankshaw | 604/154. |
5101679 | Apr., 1992 | Smith et al. | 128/DIG. |
5106375 | Apr., 1992 | Conero | 604/155. |
5176646 | Jan., 1993 | Kuroda | 604/154. |